US1233574A - Earth-cutting blade. - Google Patents

Description

' A. HEMIVIE.

EARTH CUTTING BLADE.

APPLICATION FILED 0cT.12. I916.

L%%W% Patnted Ju1y17,1917.

WM'A/TOR.

AUG/J57. HEM/WE.

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V ETH-CUTTIIIN BLADE.

Specification of Letters Patent.

Patented July 17, 1911?.

Application filed October 12, 1916. Serial No. 125,243.

To all whom it may concern:

Be it known that I, Ancns'r HnMmn, of the "village of Dublin, in the county of Perth, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Earth-Cutting Blades, of which the following is the specification.

My invention relates to improvements in I the scoop.

Fig. 2, is a perspective detail of a portion of the cutting bar.

In the drawings like figures of reference indicate corresponding parts in each figure.

1 indicates a scoop. 2 indicates an axle which extends through the side boards 3 of the scoop. 4 indicates the carrying wheels. 5 indicates the main frame swung at the rear end upon the axle 2. 6 indicates a bracket provided with aquadrant 7 carried by the frame 5. 8 indicates a lifting lever and 9 indicates a link connecting the lifting lever with the free end of the scoop.

lit will, of course, be understood that the scoop as above described is only one form,

of scoop which may be employed and is only described for the purpose of illustration of the cutting bar, which forms the subject matter of my invention, and which may be applied to any form of scoop desired, or

carried by any suitable device to perform its-* function.

v 10 indicates the cutting bar which comprises a plate 11 having up-turned ends 12 provided with orifices 13 through which bolts pass to secure the platell to the side boards of the scoop -1. The up-turned portions 12 of the plate 11 are provided with inclined cutting edges 14. The plate 11 is set at an incline, the forward edge being I provided with knife sections 15 extending substantially in a horizontal plane. 16 indicates blocks secured to the plate 11 inter- I mediately between each pair of sections 15. 17 indicate bars secured to the blocks 16 and extending downwardly between the knife sections 15 as clearlyshown in Fi 1. 18 indicate supplemental knife sectlons which are secured to the lower ends of the bars 17 and extend in advance of the knife sections 15. The knife-sections 18 and the blades 10 lie in forwardly converging planes and the sections 18 are located above the blades 10. By this means the earth is first cut by the knife sections 18 and as the earth is carried back it is engaged by the sections 15 which complete the cutting operation soas to cut a strip or layer of earth off the surface of the ground and pass it rearwardly on to the scoop as the scoop passes forwardly, the knife edges 14 serving to cut the edges of the strip away from the body of the earth so that it will pass freely on to the scoop.

What I claim as my invention is: V

1. An earth cutting blade comprising an inclined cutting bar, knife sections forming the lower edge of the cutting. barand extending outwardly therefrom ina substantially horizontal direction, andsupplemental cutting sections carried by the cutting bar so as to extendibetween each of'the" aforesaid sections and in advance ofthe same, said sections and blades lying in forwardly converging planes.

2. An earth cutting blade comprising an inclined cutting bar, knife sections forming the lower. edge of the cutting bar, and ex tending outwardly therefrom in a substantially horizontal direction, blocks mounted upon the cutting barinter nediate of each pair of lmife secti'on's', supporting. bars extending forwardly therefrom in a downwardly inclined'direct'ion, and a knife section secured to the forward end of each'supporting bar and'located'above'and intermediate of the aforesaid knife sections and in advance of the same. 1 ,v

3.- An earth cutting blade comprisingian I inclined cuttingbar, knife sections forming the lower edge of the cutting bar and extending outwardly therefrom in a substantially horizontal direction, blocks mounted upon the cutting barintermediate. of each pair of knife-sections, su porting bars exclined 'cuttin knife extending upwardly tending fogagwlg there rom a, downfrom each en of the cutting bar.

wardly inc e ection a kni e section secured to'the forward end of each sup ort- AUGUST ing bar and located above and interme 'ate Witnesses:

of the aforesaid knife sections and in ad- GLADYS Smemr,

Vance of the same, and a rearwardly in- M. EGAN.

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